:root{--primary-600: #667eea;--primary-700: #5568d3;--primary-800: #4c51bf;--secondary-500: #48bb78;--secondary-600: #38a169;--danger-500: #f56565;--danger-600: #e53e3e;--warning-500: #ed8936;--info-500: #4299e1;--gray-50: #f9fafb;--gray-100: #f3f4f6;--gray-200: #e5e7eb;--gray-300: #d1d5db;--gray-400: #9ca3af;--gray-500: #6b7280;--gray-600: #4b5563;--gray-700: #374151;--gray-800: #1f2937;--gray-900: #111827;--spacing-xs: .25rem;--spacing-sm: .5rem;--spacing-md: 1rem;--spacing-lg: 1.5rem;--spacing-xl: 2rem;--spacing-2xl: 3rem;--radius-sm: .375rem;--radius-md: .5rem;--radius-lg: .75rem;--radius-xl: 1rem;--radius-2xl: 1.5rem;--shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, .05);--shadow-md: 0 4px 6px -1px rgba(0, 0, 0, .1), 0 2px 4px -1px rgba(0, 0, 0, .06);--shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, .1), 0 4px 6px -2px rgba(0, 0, 0, .05);--shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, .1), 0 10px 10px -5px rgba(0, 0, 0, .04);--font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", "Roboto", "Oxygen", "Ubuntu", "Cantarell", sans-serif;--font-mono: "SF Mono", Monaco, "Cascadia Code", "Roboto Mono", monospace;--breakpoint-sm: 640px;--breakpoint-md: 768px;--breakpoint-lg: 1024px;--breakpoint-xl: 1280px}*{box-sizing:border-box;margin:0;padding:0}html{font-size:16px;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}body{font-family:var(--font-sans);color:var(--gray-900);background:var(--gray-50);line-height:1.6}h1,h2,h3,h4,h5,h6{font-weight:700;line-height:1.2;color:var(--gray-900)}h1{font-size:2.25rem}h2{font-size:1.875rem}h3{font-size:1.5rem}h4{font-size:1.25rem}h5{font-size:1.125rem}h6{font-size:1rem}p{margin-bottom:var(--spacing-md)}.btn{display:inline-flex;align-items:center;justify-content:center;gap:var(--spacing-sm);padding:.625rem 1.25rem;font-size:.875rem;font-weight:600;line-height:1.25rem;border:none;border-radius:var(--radius-md);cursor:pointer;transition:all .2s cubic-bezier(.4,0,.2,1);text-decoration:none;white-space:nowrap}.btn:disabled{opacity:.5;cursor:not-allowed}.btn:focus{outline:none;box-shadow:0 0 0 3px #667eea66}.btn-primary{background:var(--primary-600);color:#fff}.btn-primary:hover:not(:disabled){background:var(--primary-700);transform:translateY(-1px);box-shadow:var(--shadow-md)}.btn-primary:active:not(:disabled){background:var(--primary-800);transform:translateY(0)}.btn-secondary{background:var(--secondary-500);color:#fff}.btn-secondary:hover:not(:disabled){background:var(--secondary-600);transform:translateY(-1px);box-shadow:var(--shadow-md)}.btn-danger{background:var(--danger-500);color:#fff}.btn-danger:hover:not(:disabled){background:var(--danger-600);transform:translateY(-1px);box-shadow:var(--shadow-md)}.btn-outline{background:transparent;border:1px solid var(--gray-300);color:var(--gray-700)}.btn-outline:hover:not(:disabled){background:var(--gray-50);border-color:var(--gray-400)}.btn-ghost{background:transparent;color:var(--gray-700)}.btn-ghost:hover:not(:disabled){background:var(--gray-100)}.btn-sm{padding:.5rem .875rem;font-size:.75rem}.btn-lg{padding:.875rem 1.75rem;font-size:1rem}.unified-header{position:fixed;top:0;left:0;right:0;height:64px;background:linear-gradient(135deg,var(--primary-600) 0%,var(--primary-800) 100%);box-shadow:var(--shadow-lg);z-index:100;display:flex;align-items:center;padding:0 var(--spacing-lg)}.unified-header-content{width:100%;max-width:1280px;margin:0 auto;display:flex;align-items:center;justify-content:space-between;gap:var(--spacing-md)}.menu-toggle{display:flex;flex-direction:column;justify-content:space-around;width:28px;height:28px;background:transparent;border:none;cursor:pointer;padding:0;z-index:101;transition:all .3s ease}.menu-toggle span{width:28px;height:3px;background:#fff;border-radius:10px;transition:all .3s cubic-bezier(.4,0,.2,1);transform-origin:center}.menu-toggle:hover span{background:#fffc}.menu-toggle.active span:nth-child(1){transform:rotate(45deg) translate(7px,7px)}.menu-toggle.active span:nth-child(2){opacity:0;transform:translate(-20px)}.menu-toggle.active span:nth-child(3){transform:rotate(-45deg) translate(7px,-7px)}.back-btn{display:flex;align-items:center;justify-content:center;width:40px;height:40px;background:#fff3;color:#fff;border:none;border-radius:50%;cursor:pointer;transition:all .2s;text-decoration:none;font-size:1.25rem}.back-btn:hover{background:#ffffff4d;transform:scale(1.1)}.header-title{flex:1;color:#fff;font-size:1.25rem;font-weight:700;margin:0;text-align:center}.header-actions{display:flex;align-items:center;gap:var(--spacing-sm)}.icon-btn{position:relative;display:flex;align-items:center;justify-content:center;width:40px;height:40px;background:#fff3;color:#fff;border:none;border-radius:50%;cursor:pointer;transition:all .2s;font-size:1.25rem}.icon-btn:hover{background:#ffffff4d;transform:scale(1.1)}.icon-btn .badge{position:absolute;top:-4px;right:-4px;background:var(--danger-500);color:#fff;font-size:.625rem;font-weight:700;padding:.125rem .375rem;border-radius:10px;min-width:18px;text-align:center}.user-avatar{width:40px;height:40px;border-radius:50%;border:2px solid rgba(255,255,255,.3);cursor:pointer;transition:all .2s;overflow:hidden;background:#fff}.user-avatar:hover{border-color:#fff;transform:scale(1.1)}.user-avatar img{width:100%;height:100%;object-fit:cover}body.has-unified-header{padding-top:64px}.profile-btn{display:inline-flex;align-items:center;justify-content:center;width:40px;height:40px;background:var(--gray-100);color:var(--gray-700);border-radius:50%;text-decoration:none;font-size:1.25rem;transition:all .2s;cursor:pointer;border:2px solid transparent}.profile-btn:hover{background:var(--primary-600);color:#fff;transform:scale(1.1);border-color:var(--primary-600);box-shadow:var(--shadow-md)}input,select,textarea{width:100%;padding:.625rem .875rem;font-size:16px;line-height:1.25rem;color:var(--gray-900);background:#fff;border:1px solid var(--gray-300);border-radius:var(--radius-md);transition:all .2s;font-family:inherit}input:focus,select:focus,textarea:focus{outline:none;border-color:var(--primary-600);box-shadow:0 0 0 3px #667eea1a}input::placeholder{color:var(--gray-400)}label{display:block;margin-bottom:var(--spacing-sm);font-size:.875rem;font-weight:600;color:var(--gray-700)}.card{background:#fff;border-radius:var(--radius-xl);box-shadow:var(--shadow-sm);border:1px solid var(--gray-200);transition:all .3s cubic-bezier(.4,0,.2,1)}.card:hover{box-shadow:var(--shadow-lg);transform:translateY(-2px)}.card-body{padding:var(--spacing-lg)}.container{max-width:1280px;margin:0 auto;padding:0 var(--spacing-lg)}.text-center{text-align:center}.text-muted{color:var(--gray-500)}.text-sm{font-size:.875rem}.text-xs{font-size:.75rem}.mt-1{margin-top:var(--spacing-xs)}.mt-2{margin-top:var(--spacing-sm)}.mt-4{margin-top:var(--spacing-md)}.mt-6{margin-top:var(--spacing-lg)}.mt-8{margin-top:var(--spacing-xl)}.mb-1{margin-bottom:var(--spacing-xs)}.mb-2{margin-bottom:var(--spacing-sm)}.mb-4{margin-bottom:var(--spacing-md)}.mb-6{margin-bottom:var(--spacing-lg)}.mb-8{margin-bottom:var(--spacing-xl)}.flex{display:flex}.items-center{align-items:center}.justify-between{justify-content:space-between}.gap-2{gap:var(--spacing-sm)}.gap-4{gap:var(--spacing-md)}.gap-6{gap:var(--spacing-lg)}@keyframes fadeIn{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}.fade-in{animation:fadeIn .3s ease-out}.skip-link{position:absolute;top:-40px;left:0;background:var(--primary-600);color:#fff;padding:8px 16px;text-decoration:none;border-radius:0 0 4px;font-weight:600;z-index:10000;transition:top .2s}.skip-link:focus{top:0;outline:3px solid var(--primary-800);outline-offset:2px}*:focus-visible{outline:3px solid var(--primary-600);outline-offset:2px;border-radius:2px}button:focus-visible,a:focus-visible,input:focus-visible,textarea:focus-visible,select:focus-visible{outline:3px solid var(--primary-600);outline-offset:2px;box-shadow:0 0 0 4px #667eea33}@media (prefers-contrast: high){:root{--primary-600: #4c51bf;--gray-500: #000000}.btn{border:2px solid currentColor}}@media (prefers-reduced-motion: reduce){*,*:before,*:after{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important;scroll-behavior:auto!important}}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border-width:0}.sr-only-focusable:focus,.sr-only-focusable:active{position:static;width:auto;height:auto;overflow:visible;clip:auto;white-space:normal}.card,.modal-content,.dropdown-menu{color:var(--gray-900)}.text-muted{color:var(--gray-600)}@media (max-width: 768px){h1{font-size:1.875rem}h2{font-size:1.5rem}h3{font-size:1.25rem}.container{padding:0 var(--spacing-md)}}